Seiko Cal. 6657 - 121

The 6657-121 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6657 caliber with 19j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-d88d0c7338f3]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1999

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